Automatic telephone systems provided with toll recording facilities



April 7; 1959 D AIRD o. B ET AL 2,881,258 AUTOMATIC TELEPHONE SYSTEMS PROVIDED WITH TOLL RECORDING FACILITIES Filed Jan. 9. 1953 22 Sheets-Sheet 1 BY Raymond G. Bie/enberg MvMM AUTOMATIC TEL Filed Jan. 9,- 1955 D O. BAIRD ET AL EPHONE SYSTEMS PROVI TOLL RECORDING FACILITIES DED WITH 22 Sheets-Sheet -2 TRUNK c/R. TRUNK CIR.

I500 973 TRUNK SEL. TRUNK SEL. E 9 FROM WA2 FROM LI6 o, o I600 974. J

I Q Q Q D W Q a: a; CE B -u'\ z g p o: 3 E I to i 5 g '8, g cc arm a g: g E Q g '44 q g k k I, MASTER CLOCK 960 I o, m g Q a 8 g 35- Z I E g u 5? 8 Q Q Q Q N g a g g on Q 2 I mi g III' ll '6 Q r: 27 g E, Q: 35 3% T q 0 Q III II Q0 R H H QC 1 m I i m 5 a g III II D Q 0 3% 3s: 3 9 Q :2,

l L Q) T O 7930 INVENTORS Douglas 0.Ba/'rd Q) B Raymond G Bielenberg I M,MM

ANT/s.

April 7, I D BA|RD ET AL I 2 AUTOMATIC TELEPHONE SYSTEMS PROVIDED WITH TOLL RECORDING FACILITIES Filed Jan. 9, 1953 22 Sheets-Sheet 4 fi FINDER 537 5} LINE Gi gle IT 535 500 +R520 "22 2 :5l3 553 c 1/ h5g1 38 TWO 3 3-522 I STEP 6.

- DISTRIBUTOR 530 554 I ..-'lf I I T540 "WAT/Q k A 9 I 7955 1 J LINE 7930 0/ CIR. I 0

D540 LITA Q v 3 L955 0/ R46 U540 .J

1 r0 OTHER LINE clRs. cl 5 0 a Q 2: h

INVENTORS F/G. 5 Douglas 0. Baird April 1959 D. o. BAIRD ET AL 2,881,258

AUTOMATIC TELEPHONE SYSTEMS PROVIDED WITH TOLL RECORDING FACILITIES Fil'ed Jan. 9, 1953 22 Sheets-Sheet a CONNECT RE 6 /5 TE R REGISTER 720 3 DIG/7 M1732 PRIMARY SELECTOR 600 REGISTER 730 JNVENTORS F IG. 7

Douglas 0. Ba/'rd BY Raymond G B/e/enberg MMMM April 1959' D. o. BAIRD ET AL 2,831,258

- AUTOMATIC TELEPHONE SYSTEMS PROVIDED WITH TOLL RECORDING FACILITIES Filed Jan. 9, 1953 I 22 Sheets-Sheet 7 PRESELECT TRUNK CIR.

i l I o- 860 8066; "55 TO OTHER TOLL RECORD LINK; 79550 I? 5! LOCAL LOCAL LOCAL 7*? v SEL. z -sa. CONN. 870 7 89/ 892.. 893 r0 OTHER LOCAL I SELECTORS. 7930 RAG 095 INVENTORS? F/G. 8 Doug/as 0 Ba/rd BY Raymond G B/e/enberg 22 Sheets-Sheet 8 LINE jpEwsaao STEPX l l 926 row I v I HEROZ l 976w? TRUNK RECORD LINK 900 LINKS EPHONE SYSTEMS PROVIDED WITH 10 0mm rou nscono' D. O. BAIRD ET AL TEL TOLL RECORDING FACILITIES REGISTER AUTOMATIC LALLOTER 9/0 April 7,

Filed Jan. 9, 1953 igz wzo 802;

m 5 m m am m m MOB VM mflm W0 PM W R I Y M M. 4 5 9 F D. o. BAIRD ET AL 2,881,258 AUTOMATIC TELEPHONE SYSTEMS PROVIDED WITH TOLL RECORDING FACILITIES 22 SheetsSheer, ,10

Fil'd Jan. 9, 1953 TRUNK RECORD LINK 900 MASTER CLOCK 7/60 ll6'5 CHANGE I INVENTORS I Doug/r150v Baird BY Raymond G. Bielenberg April 7, 1959 D. o. BAIRD ET AL I 2,881,258

AUTOMATIC TELEPHONE SYSTEMS PROVIDED WITH TOLL RECORDING FACILITIES 22 Sheets-Sheet 11- Filed Jan. 9, 1953 F/IZII e051 W215 AW /216 LOCKOUT I 6 I 1 "I 2 92 27 Q 1 l I224 I /225 TRUNK RECORD LINK 900 0. 5mm mm m E V m/W m R V. B

E W F April 1959 D. o. BAIRD ET AL 2,881,258

AUTOMATIC TELEPHONE SYSTEMS PROVIDED WITH TOLL RECORDING FACILITIES Filed Jan. 9, 1953 22 Sheets-Sheet l5 GANG H7420 TRANS. [4/5 MAGNET/C RECORDER DDIGIT 1403 (0540 U DIG/T I404 CALLING N0. REGISTERS one Gens. 1- /2& I266! TRUNK RECORD To Tone Gen.

L-INK 900 144 fl/ RA 6 I266 '7 W INVENTORS F G. /4 I Douglas 0. Baird BY Raymond G Bie/enberg RECORD SEOUENC April 7, 1959 D. O. BAIRD ET AL AUTOMATIC TELEPHONE SYSTEMS PROVIDED WITH TOLL RECORDING FACILITIES Filed Jan. 9, 1953 v 22 Sheets-Sheet 18 TRUNK REGISTER LINK I900 m Q mEumfim HE E MB x22:

INVENTORS Doug/as 0. Baird Raymond G Bie/enberg Yam ml April 1959 D. o. BAIRD ET AL 2,881,258

AUTOMATIC TELEPHONE SYSTEMS PROVIDED WITH TOLL RECORDING FACILITIES 22 Sheets-Sheet 19 Filed Jan. 9, 1953 TRUNK REGISTER L/NK I900 WA Z 5 m 0 M B n T w. H w R. d.

B O 2 G H April 7, 19 D. 0. BAIRD ET AL 2,831,258

AUTOMATIC TELEPHONE SYSTEMS PROVIDED WITH TOLL RECORDING FACILITIES 22 Sheets-Sheet 20 Filed Jan. 9, 1953 TRUNK REGISTER LINK I900 r 5% R0 am Mm flad U H FIG. 2/ 

